policycoreutils — security advisory
Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.
- Products
- policycoreutils
- Affected versions
- Not specified
- Fixed versions
- 2.7-1
- CVEs
- CVE-2018-1063
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:04 UTC · Revision 1
Source evidence
Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.
osv:DEBIAN-CVE-2018-1063
policycoreutils
Fixed versions: 2.7-1
policycoreutils
Fixed versions: 2.7-1
policycoreutils
Fixed versions: 2.7-1
Complete source record
{
"id": "934980aff74d4241fc6d117c36357a397b6bdbdb55e8bb940e4d939b7828f3b1",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-1063",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-1063",
"summary": "Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.",
"evidence": "osv:DEBIAN-CVE-2018-1063",
"products": [
{
"name": {
"value": "policycoreutils",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "policycoreutils",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "policycoreutils",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.7-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2018-1063",
"aliases": [
"DEBIAN-CVE-2018-1063"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7-1"
}
]
}
],
"package": {
"name": "policycoreutils",
"purl": "pkg:deb/debian/policycoreutils?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1063.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7-1"
}
]
}
],
"package": {
"name": "policycoreutils",
"purl": "pkg:deb/debian/policycoreutils?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1063.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.7-1"
}
]
}
],
"package": {
"name": "policycoreutils",
"purl": "pkg:deb/debian/policycoreutils?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1063.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:02:56.719872683Z",
"provider": "osv",
"upstream": [
"CVE-2018-1063"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-1063"
]
},
"related_cves": [
{
"value": "CVE-2018-1063",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 419881,
"published_at": "2018-03-02T15:29:00.4+00:00"
}